kkara4
09-11-2014, 11:01 AM
Pretty stoked with my first Uranus image in average seeing! EdgeHD 925 @ F/40 with Canon 5D MK III. Backyard EOS to pull 1000 frames and did a quick registax of the best 10% of frames. Zero sharpening or wavelets, just exposure corrected in PS. PA wasnt spot on, and no idea how to get GOTO working on gemini 2 yet, so found it manually after 30 minutes or so of careful back and forth between binoculars and finderscope.
I then went for moons, found that ISO 12800 25 second was my limit with bad PA causing smearing, and the moon washing the sky out a bit. I could have exposed longer at lower ISO otherwise. Guidescope would have fixed the issue, but really wasnt expecting to even find Uranus, just thought id give it a go and didnt have the guidescope set up. Used a 5 frame manual stack in photoshop, curves to eliminate noise and a crop. The moons were pretty much lost in noise anyway so thought some destruction of brightness was a good compromise for clearly showing Titania, Oberon and Umbriel :)
I had the eyepiece in initially while hunting it down, my first ever view of Uranus :eyepop:.
I then went for moons, found that ISO 12800 25 second was my limit with bad PA causing smearing, and the moon washing the sky out a bit. I could have exposed longer at lower ISO otherwise. Guidescope would have fixed the issue, but really wasnt expecting to even find Uranus, just thought id give it a go and didnt have the guidescope set up. Used a 5 frame manual stack in photoshop, curves to eliminate noise and a crop. The moons were pretty much lost in noise anyway so thought some destruction of brightness was a good compromise for clearly showing Titania, Oberon and Umbriel :)
I had the eyepiece in initially while hunting it down, my first ever view of Uranus :eyepop:.